diff --git a/par-core/src/main/java/com/par/core/service/impl/SiteSnapshotServiceImpl.java b/par-core/src/main/java/com/par/core/service/impl/SiteSnapshotServiceImpl.java
index 0596067..e3ecea8 100644
--- a/par-core/src/main/java/com/par/core/service/impl/SiteSnapshotServiceImpl.java
+++ b/par-core/src/main/java/com/par/core/service/impl/SiteSnapshotServiceImpl.java
@@ -101,6 +101,14 @@ public class SiteSnapshotServiceImpl implements SiteSnapshotService {
                             .eq(RiskRule::getSiteType, siteType)
                             .eq(RiskRule::getDeleted, 0)
                             .orderByDesc(RiskRule::getId));
+            if (rules.isEmpty()) {
+                // fallback 到默认模板
+                rules = riskRuleMapper.selectList(
+                        new com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper<RiskRule>()
+                                .eq(RiskRule::getSiteType, "default:" + siteType)
+                                .eq(RiskRule::getDeleted, 0)
+                                .orderByDesc(RiskRule::getId));
+            }
             if (!rules.isEmpty()) {
                 var latestRule = rules.get(0);
                 try {